Php codeigniter中的未定义变量_Php_Codeigniter_View

Php codeigniter中的未定义变量

php codeigniter view

Php codeigniter中的未定义变量,php,codeigniter,view,Php,Codeigniter,View,遇到一个PHP错误 Severity: Notice Message: Undefined variable: data Filename: views/body_view.php Line Number: 13 A PHP Error was encountered Severity: Warning Message: Invalid argument supplied for foreach() Filename: views/body_view.php Line Number: 13 所

遇到一个PHP错误

Severity: Notice
Message: Undefined variable: data
Filename: views/body_view.php
Line Number: 13
A PHP Error was encountered
Severity: Warning
Message: Invalid argument supplied for foreach()
Filename: views/body_view.php
Line Number: 13

所以我在Codeigniter中遇到了这个问题

控制器：

<?php
if ( ! defined('BASEPATH')) exit ('No direct script access allowed');

class Blog extends CI_Controller {

    public function __construct()
    {
    parent::__construct();
    }    
    public function index()
    {
        echo 'Hello World!';
    }

    public function mat()
    {
        $this->load->model('materials_model');
        $data = array();
        $data['news'] = $this->materials_model->get();
        $this->load->view('body_view',$data);
    }


}
?>

型号：

<?php
if ( ! defined('BASEPATH')) exit ('No direct script access allowed');

class Materials_model extends CI_Model
{
    public function get()
    {
        $query = $this->db->get('materials');
        return $query->result_array();
    }
}

?>

视图：

A.

将视图代码更改为

<?php foreach ($news as $one):?>
<?=$one['author']?>
<?php endforeach; ?>

也就是说，将视图中的

$data

替换为

$news

执行以下操作

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

<head>
    <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
    <meta name="author" content="The Sabotage Rebellion hackers" />

    <title>a</title>
</head>

<body>

<?php foreach ($news as $one):?>
<?=$one['author']?>
<?php endforeach; ?>

</body>
</html>

A.

在foreach中将$data替换为$news

假设您有

$data

数组，如下所示：

$data['x'] = 1;

如果将

$data

传递给视图

您可以作为

$x

访问

，而不是

$data['x']

谢谢。对不起，我疏忽了

$data['x'] = 1;